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where can fine the data sheet of csc5087

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czxjuren

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recently i have many interest in phone ,i fine a IC csc5087 that is DTMF transceiver,but i don't how to use it ,where can fine the data sheet of it?
 

Sebi

Active Member
I think, this is a clone of original MOSTEK MK5087, but this IC is only a tone dialer,without tone decoder function...
UMC number is UM 95087.
I have both d'sheets.
 
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